. >>> lindsay will join us later from redskins park. > still ahead, sidelines by injury. why some local athletes may have to sit out a while longer if they suffer a concussion. >>> i'm liz crenshaw. why you may not be able tell the difference between enhanced salmon and the real thing. >>> and tired of sitting in traffic and waiting for metro? aew way to get arou >>> heads up if you're heading to tyson's corner. crews closed another ramp at leesburg road and dulles pike. the new exit from route 123 will divert traffic from frontage road south of international drive. from there y can access leesburg pike. the new pattern will stay in effect until the end of the year. >>> on two wheel getting around town got a bit easier. starting today you can rent bicycle in the district at arlington. >> it is part of the capital bike share program. traceeilkins has more on how this woks. >> reporter: beginning today, a new form transportation norfolk in the washington area who are looking for a quick trip and a little exercise. capital bike share is an expansion o d.c.'s smart bike progr